[Bug]: There's no cancel/close button on the KryptonContextMenu Items Editor window

[ICloneableX]

Describe the bug
The KryptonContextMenu Items Editor doesn't have a Cancel button, nor a control box, so the only way to close it is by clicking the OK button. This forces you to accept any changes you've made to the items with no way of discarding them.

To Reproduce

1. Add a KryptonContextMenu.
2. From the Properties window, open the Items property editor.
3. The only way to close the editor window is by clicking the OK button.

Expected behavior
There should be a Cancel button that discards any changes made to the items.

Screenshots

Desktop:

• OS: Windows 10
• Framework/.NET Version: .NET Framework 4.8
• Toolkit Version: 90.24.11.317